How is wind direction indicated on a weather map?

What are the four main parts of a spiral galaxy?

Why is a shell considered to be biotic

Why did the scientific community initially reject Wegener's theory of continental drift? Wegener could not explain what made the continents move. Wegener thought mountains formed from the shrinking of Earth.

Explain why ionic compounds are neutral even though they are made up of charged particles

If the density in an object is 30 g/cm3 and it's volume is 10 cm3 what is the mass in grams

Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also feels warm to touch.

Which part of the motor is responsible for reversing the flow of current?

In a generator, as the magnet spins, opposite poles of the magnet push the electrons in opposite directions. This back-and-forth movement of electrons is called what? A) revolutions per minute B) direct current C) alternating current.

A train travels at a speed of 30 miles/hour and traveled a distance of 240 miles. How long did it take the train to complete its journey?

What is the mass number of a potassium atom that has 20 neutrons